Zitron Trekking 6-Ply is like the Trekking XXL yarn you've come to know and love now available in a sport weight yarn! This makes it very versatile for knitting cold weather, thick socks and sweaters. 75% Superwash Merino Wool, 25% Nylon. 426 yards per 150 gram skein. Approximate average gauge: 22-24 sts = 4 inches / US 2-6.